Support transfer process
Created by: tzarebczan
Support transfer of claims and channels for YouTubers who have requested their content to be sent to their local wallets. Main features:
- batch send claims/channels to supplied address (https://github.com/lbryio/lbry/issues/1821)
- process tips - either abandon all tips or claim_send them to their new address, We could also tip their channel as another option - so they see the total amount of tips received (not sure if this is good or bad).